package com.fmjr.common.util;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;

@Component
public class SpringUtil implements ApplicationContextAware {

	private static ApplicationContext applicationContext = null;

	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {

		if (SpringUtil.applicationContext == null) {

			SpringUtil.applicationContext = applicationContext;

		}
	}

	// 获取applicationContext

	public static ApplicationContext getApplicationContext() {

		return applicationContext;

	}

	// 通过name获取 Bean.

	public static Object getBean(String name) {

		return getApplicationContext().getBean(name);

	}

	// 通过class获取Bean.

	public static <T> T getBean(Class<T> clazz) {

		return getApplicationContext().getBean(clazz);

	}

	// 通过name,以及Clazz返回指定的Bean

	public static <T> T getBean(String name, Class<T> clazz) {

		return getApplicationContext().getBean(name, clazz);

	}

}